| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Wiltse Sarah | SVP and CHRO | 7001 MT RUSHMORE RD, RAPID CITY | /s/Travis Frederickson | 09 Feb 2026 | 0002044118 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | BKH | Common Stock | Award | $0 | +2,327 | +43% | $0.000000 | 7,733 | 06 Feb 2026 | Direct | F1 |
| transaction | BKH | Common Stock | Tax liability | $14,534 | -201 | -2.6% | $72.30 | 7,532 | 07 Feb 2026 | Direct | F2 |
| Id | Content |
|---|---|
| F1 | Shares acquired through a Restricted Stock Grant under the Company's Incentive Compensation Plan. |
| F2 | Shares used to pay tax withholding associated with Restricted Stock Vesting from 2-7-2025 Restricted Stock Grant |